Add Micrometer [history]montreal

- add Micrometer dependency
- add build.gradle on the project root level since the Jenkins gradle plugin is failing otherwise

Issue-ID: PORTALNG-59
Change-Id: I7342b7be38ab6620f5d216006e34b7b60333d740
Signed-off-by: Fiete Ostkamp <Fiete.Ostkamp@telekom.de>

3 files changed, 19 insertions, 0 deletions

diff --git a/app/build.gradle b/app/build.gradle
index 227f384..54f80b2 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -25,6 +25,7 @@ ext {
         embedMongoVersion = '4.7.0'
         embedMongoIntegrationVersion = '4.7.0'
         springCloudWiremockVersion = '4.0.3'
+        micrometerVersion = '1.0.0'
 }
 
 dependencies {
@@ -42,6 +43,11 @@ dependencies {
     implementation "ch.qos.logback:logback-core:$logbackVersion"
     implementation "net.logstash.logback:logstash-logback-encoder:$logstashLogbackVersion"
 
+    implementation(platform("io.micrometer:micrometer-tracing-bom:$micrometerVersion"))
+    implementation("io.micrometer:micrometer-tracing")
+    implementation("io.micrometer:micrometer-tracing-bridge-otel")
+    implementation("io.opentelemetry:opentelemetry-exporter-zipkin")
+
     compileOnly 'org.projectlombok:lombok'
 
     developmentOnly 'org.springframework.boot:spring-boot-devtools'
diff --git a/app/src/main/resources/application.yml b/app/src/main/resources/application.yml
index 13c8716..8d3ccde 100644
--- a/app/src/main/resources/application.yml
+++ b/app/src/main/resources/application.yml
@@ -40,3 +40,10 @@ management:
       enabled: true
     java:
       enabled: true
+  tracing:
+    enabled: true
+    sampling:
+      probability: 1.0 # sample every request
+  zipkin:
+    tracing:
+      endpoint: http://${COLLECTOR_HOST}:${COLLECTOR_PORT}/api/v2/spans
\ No newline at end of file
diff --git a/build.gradle b/build.gradle
new file mode 100644
index 0000000..170acca
--- /dev/null
+++ b/build.gradle
@@ -0,0 +1,6 @@
+// this build.gradle is mainly here to satisfy the Jenkins gradle plugin
+allprojects {
+  repositories {
+	  mavenCentral()
+  }
+}
\ No newline at end of file